Panasonic LUMIX S 20mm F2.5 vs Sigma 20mm F1.4 DG DN | Art (L-Mount)
Key differences
- —The LUMIX S 20mm F2.5 is 493g lighter (142g vs 635g).
- —The 20mm F1.4 DG DN | Art (L-Mount) is faster: f/1.4 vs f/2.5 (≈1.7 stops more light).
- —At launch the LUMIX S 20mm F2.5 cost $401 less ($498 vs $899).
- —For close-ups the 20mm F1.4 DG DN | Art (L-Mount) reaches 0.16× vs 0.15×.
Which to choose
- LUMIX S 20mm F2.5
Choose it for:
- +The lightest option: 142g, 493g less than the next
- +The lowest launch price: $498, $401 less
- 20mm F1.4 DG DN | Art (L-Mount)
Choose it for:
- +The brightest aperture: f/1.4, about 1.7 stops more light
- +A physical aperture ring
- +The sharpest results in reviews
- +The nicest background blur in reviews
Computed from published specs, confirmed launch prices and, where every lens has at least two reviews, review scores.
- Mount
- L-Mount (FF)
- L-Mount (FF)
- Focal length
- 20mm
- 20mm
- Max aperture
- F2.5
- F1.4◆
- Weight
- 142g◆
- 635g
- Dimensions ⌀ × L
- 69.4 × 40.9mm
- 87.8 × 111.2mm
- Volume
- 155 cm³◆
- 673 cm³
- Density
- 0.92 g/cm³
- 0.94 g/cm³
- Filter thread
- ⌀62mm
- ⌀82mm
- Min focus
- 0.18m◆
- 0.23m
- Max magnification
- 0.15×
- 0.16×◆
- Elements / groups
- 11 / 9
- 17 / 15
- Aperture blades
- 7
- 11◆
- Focus drive
- Stepping Motor
- Stepping Motor
- Stabilisation
- —
- —
- Weather sealed
- Yes
- Yes
- Aperture ring
- —
- Yes · de-click
- Released
- 2026
- 2022
- MSRP (USD)
- $498◆
- $899
- Sharpness
- 7.6
- 8.5◆
- Bokeh Rendering
- 7.0
- 8.0◆
- Autofocus Speed
- 8.3
- 8.4◆
- Flare Resistance
- 6.4
- 8.0◆
- Build / Sealing
- 8.2
- 8.9◆
- Value / Size
- 7.8
- 8.8◆
Performance overlay
- LUMIX S 20mm F2.5
- 20mm F1.4 DG DN | Art (L-Mount)
◆ marks the best value in a row. Scores are 0–10 editorial ratings.